Patents by Inventor Yufeng Zhang

Yufeng Zhang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20250110656
    Abstract: Provided are a method, apparatus and device for erasing server data. The method includes: receiving a target data erasure strategy sent from a human-machine interaction device; in response to the target data erasure strategy being a fast erasure strategy, erasing a specified type of data in a hard disk drive of a server to be processed; and in response to the target data erasure strategy being a safe erasure strategy and a hard disk drive alarm existing in the server to be processed, performing data erasure on a part of the hard disk drive of the server to be processed except a sector to be mapped, and erasing data other than hard disk drive data of the server to be processed.
    Type: Application
    Filed: March 3, 2023
    Publication date: April 3, 2025
    Inventors: Chengping LIU, Yufeng ZHANG, Feng GUO
  • Publication number: 20250059106
    Abstract: A high-nutrient and high-activity chemical fertilizer-biological compound fertilizer, and a preparation method and application thereof are provided. The high-nutrient and high-activity chemical fertilizer-biological compound fertilizer includes an inorganic chemical fertilizer and a microbial agent. The chemical fertilizer-biological compound fertilizer has nutrient contents of nitrogen, phosphorus, and potassium of greater than 40% and a viable number of microorganisms of 200 million cfu/g or more. The chemical fertilizer-biological compound fertilizer further includes a microbial protectant, and a mass ratio of the microbial protectant to the microbial agent is ?1.
    Type: Application
    Filed: November 4, 2024
    Publication date: February 20, 2025
    Inventors: Yufeng Zhang, Zhaohui Liu
  • Publication number: 20250058750
    Abstract: Techniques are described for determining failover to a redundant braking system. An example method can include determining a fault occurring at a first braking system or a second braking system of a primary braking system of an autonomous vehicle operating in an autonomous mode, and the autonomous vehicle using the first braking system. The method can further include switching from using the first braking system in the autonomous mode if the fault is determined at the first braking system. The method can further include transmitting to an alert system of the autonomous vehicle, a request to generate an alert for switching to a manual control mode of the autonomous vehicle based at least in part on determining the fault. The method can further include deactivating the autonomous mode of the autonomous vehicle upon determining that the autonomous vehicle is in the manual control mode.
    Type: Application
    Filed: November 7, 2024
    Publication date: February 20, 2025
    Applicant: PlusAI, Inc.
    Inventors: Yufeng Zhang, Siva Bhargav Ravella, Robert Joseph Dingli, Amit Kumar
  • Publication number: 20250059104
    Abstract: A microbial protectant in a high-nutrient and high-activity chemical fertilizer-biological compound fertilizer and a preparation method thereof are related, belonging to the technical field of biological extracts. The microbial protectant mainly includes alginate oligosaccharide and tetrahydropyrimidine, with the other ingredients further including at least one of burdock oligosaccharide, chitosan oligosaccharide, amino acid, vegetable oil, fumaric acid, and citric acid. The microbial protectant can protect microorganisms from injury and death in extreme environments, such as a high-salt environment, has broad application prospects, and may be applied to the preparation of a high-activity microbial agent and the preparation of a high-nutrient chemical fertilizer-biological compound fertilizer.
    Type: Application
    Filed: November 4, 2024
    Publication date: February 20, 2025
    Inventors: Yufeng Zhang, Zhaohui Liu, Yan Chi, Zhikai Zhang
  • Publication number: 20250007015
    Abstract: A thermal runaway trigger method relates to the technical field of batteries. The thermal runaway trigger method includes: providing a battery cell and a heating member arranged in the battery cell; and heating the inside of the battery cell by the heating member, so as to cause a thermal runaway of the battery cell. The heating member is arranged inside the battery cell, and the heating member heats the inside of the battery cell to cause the thermal runaway of the battery cell, so that the inside of the battery cell can be heated to cause the thermal runaway of the battery cell in a relatively short time. Due to the reduced internal space of the battery cell, the range of diffusion of the heating member inside the battery cell is small, and the heat loss of the heating member is relatively small.
    Type: Application
    Filed: September 13, 2024
    Publication date: January 2, 2025
    Inventors: Yujie Pu, Yao Li, Yufeng Zhang, Jianhuang Ke, Xiaobo Chen
  • Patent number: 12162464
    Abstract: Techniques are described for determining failover to a redundant braking system. An example method can include a system determining a fault occurring in a braking system of an autonomous vehicle (AV) operating in an autonomous mode, the braking system comprising a first braking system and a second braking system, the fault occurring in at least one of the first braking system and the second braking system, and the AV using the first braking system. The system can further determine whether to switch from using the first braking system based at least in part on determining the fault. The system can further transmit to an alert system of the AV, a request to generate an alert for manual control of the AV based at least in part on determining the fault. The system can further deactivate the autonomous mode of the AV based at least in part on determining the fault.
    Type: Grant
    Filed: March 22, 2023
    Date of Patent: December 10, 2024
    Assignee: PlusAI, Inc.
    Inventors: Yufeng Zhang, Siva Bhargav Ravella, Robert Joseph Dingli, Amit Kumar
  • Publication number: 20240406828
    Abstract: A method of wireless communication includes configuring a first wireless communication device as a central and a second wireless communication device as a peripheral or vice versa. The first wireless communication device includes a number of controllers (transceivers). The method further includes forming an active link between the second wireless communication device and the first wireless communication device via a first controller. During each connection interval of a measurement period, the method further includes the steps of (i) transmitting only one data packet via the first controller for a central device or suspending transmission from the first controller for a peripheral, (ii) determining a first received signal quality from a data packet received via the first controller, (iii) receiving one data packet (central) or two data packets (peripheral) at a second controller, and (iv) determining a second received signal quality from the last received data packet at the second controller.
    Type: Application
    Filed: May 2, 2024
    Publication date: December 5, 2024
    Inventors: Yufeng Zhang, Robert Yeung, Damien Lefebvre, Humberto De Brito Rangel Neto
  • Patent number: 12133760
    Abstract: The present disclosure provides an ultrafast Doppler ultrasound method for estimating a blood flow velocity through repetitive compounding of multi-angle plane waves. The method includes: controlling an ultrasonic transducer to cyclically transmit plane waves (101) according to a sequence of deflection angles of {0, ??, ?, ??}; receiving echo signals (102) of the plane waves reflected by an area to be scanned; searching for three consecutive frames of signals with deflection angles in a sequence of {0, ??, ?} and {?, ??, 0} in the echo signals to obtain multiple frame groups (103); compounding the three consecutive frames of signals of each frame group to obtain a compounded radio frequency (RF) signal (105); calculating a blood flow velocity (106) according to the compounded RF signal; and performing color coding on the blood flow velocity to generate a two-dimensional (2D) blood flow velocity image (107).
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: November 5, 2024
    Assignee: YUNNAN UNIVERSITY
    Inventors: Bingbing He, Yufeng Zhang, Zhiyao Li, Hao Li, Benxian Yang, Zerong Liao
  • Publication number: 20240317197
    Abstract: Techniques are described for determining failover to a redundant braking system. An example method can include a system determining a fault occurring in a braking system of an autonomous vehicle (AV) operating in an autonomous mode, the braking system comprising a first braking system and a second braking system, the fault occurring in at least one of the first braking system and the second braking system, and the AV using the first braking system. The system can further determine whether to switch from using the first braking system based at least in part on determining the fault. The system can further transmit to an alert system of the AV, a request to generate an alert for manual control of the AV based at least in part on determining the fault. The system can further deactivate the autonomous mode of the AV based at least in part on determining the fault.
    Type: Application
    Filed: March 22, 2023
    Publication date: September 26, 2024
    Applicant: PlusAI, Inc.
    Inventors: Yufeng Zhang, Siva Bhargav Ravella, Robert Joseph Dingli, Amit Kumar
  • Patent number: 12095049
    Abstract: A thermal runaway trigger method relates to the technical field of batteries. The thermal runaway trigger method includes: providing a battery cell and a heating member arranged in the battery cell; and heating the inside of the battery cell by the heating member, so as to cause a thermal runaway of the battery cell. The heating member is arranged inside the battery cell, and the heating member heats the inside of the battery cell to cause the thermal runaway of the battery cell, so that the inside of the battery cell can be heated to cause the thermal runaway of the battery cell in a relatively short time. Due to the reduced internal space of the battery cell, the range of diffusion of the heating member inside the battery cell is small, and the heat loss of the heating member is relatively small.
    Type: Grant
    Filed: August 21, 2023
    Date of Patent: September 17, 2024
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Yujie Pu, Yao Li, Yufeng Zhang, Jianhuang Ke, Xiaobo Chen
  • Publication number: 20240248488
    Abstract: The present disclosure discloses a motion control method and apparatus for a legged robot, a legged robot, a computer-readable storage medium, and a computer program product. The legged robot includes at least two foot-ends. The method includes: receiving a bound instruction for the legged robot in response to the foot-ends of the legged robot standing in unit regions that are independent from one another, the bound instruction being used for instructing the legged robot to bound to a target unit region from at least two unit regions in which the legged robot is currently located; and controlling the legged robot to bound to the target unit region in response to the bound instruction, a distance between any two foot-ends of the legged robot in the target unit region being less than a distance between two corresponding foot-ends before bounding.
    Type: Application
    Filed: April 2, 2024
    Publication date: July 25, 2024
    Inventors: Wanchao CHI, Xinyang JIANG, Yu ZHENG, Yufeng ZHANG, Lingzhu XIANG
  • Publication number: 20240233371
    Abstract: A depth-stage dependent and hyperparameter-adaptive lightweight CNN-based model, named Faster R-Stair, which relates to the field of concrete crack detection technology. The structure of the backbone in this model is depth-stage dependent, which includes suitable structures in different depths. The backbone is also hyperparameter-adaptive. The basic components in different depths of the backbone have variations according to the adjustment of some hyperparameters. The proposed model in this embodiment has the advantages of high convergence speed in training, fast detection speed and high accuracy when used in crack detection.
    Type: Application
    Filed: December 15, 2023
    Publication date: July 11, 2024
    Applicants: Hohai University, Jiangxi University of Science and Technology, JSTI Group Co., Ltd
    Inventors: Maosen CAO, Ronghua FU, Tongfa DENG, Yufeng ZHANG, Xiangdong QIAN, Dragoslav Sumarac, Shuai LI, Kai ZHU
  • Patent number: 12032077
    Abstract: The system and method facilitates Real-Time-Kinematic (RTK) GNSS with long baseline between a rover receiver and a base station receiver, even in the presence of scintillation or ionospheric disturbances that spatially fluctuate. Residual atmospheric errors can be estimated by a dual error model in a filter to promote efficient fixing or resolution of carrier phase ambiguities.
    Type: Grant
    Filed: May 13, 2022
    Date of Patent: July 9, 2024
    Assignee: DEERE & COMPANY
    Inventors: Yufeng Zhang, Liwen Dai
  • Publication number: 20240221357
    Abstract: A three-stage modularized convolutional neural network (CNN) called Stairnet is disclosed for efficient classification of concrete cracks in images. Unlike traditional CNNs which exhibit similar structural characteristics in each layer, Stairnet is composed of three distinct parts: stair1, stair2, and stair3, each possessing its own unique structural characteristics. Stair1 exclusively consists of convolution layers, while stair2 incorporates a greater number of layers. Stair3, on the other hand, utilizes larger expansion factors and kernel size. Stair1 and stair2 exhibit various variations that result in their modification alongside certain parameters of Stairnet. In contrast to traditional CNNs utilized for the classification of thousands of classes, Stairnet stands out with its smaller model size, faster training speed, and high accuracy in classifying concrete cracks.
    Type: Application
    Filed: December 28, 2023
    Publication date: July 4, 2024
    Applicants: Hohai University, Jiangxi University of Science and Technology
    Inventors: Maosen CAO, Ronghua FU, Yufeng ZHANG, Tongfa Deng, Shuai LI, Dragoslav Sumarac
  • Publication number: 20240221426
    Abstract: The present disclosure provides a behavior detection method, including: acquiring data of a plurality of video image frames from a video stream; and detecting a pedestrian behavior in the video stream according to the data of the plurality of video image frames, the detecting a pedestrian behavior in the video stream according to the data of the plurality of video image frames includes at least: inputting the data of the plurality of video image frames into a two-dimensional convolutional neural network, and identifying the pedestrian behavior in the video stream according to an association relationship between time sequences of the data of the plurality of video image frames and the data of the plurality of video image frames. The present disclosure further provides an electronic device, and a computer-readable storage medium.
    Type: Application
    Filed: April 24, 2022
    Publication date: July 4, 2024
    Inventors: Qian XU, Xia JIA, Ming LIU, Yufeng ZHANG, Weiyao LIN
  • Publication number: 20240070224
    Abstract: The present disclosure provides a method for identifying modal parameters of engineering structures based on fast stochastic subspace identification, and relates to the field of structural modal parameters identification. The method includes the following steps: collecting responses; obtaining a unitary matrix by performing random projection on and QR decomposition of a matrix; obtaining a small matrix by projecting a Toeplitz matrix onto the unitary matrix; obtaining U, S, V matrices respectively by performing singular value decomposition of the small matrix; performing eigenvalue decomposition; and determining an order interval. According to the present disclosure, the small matrix is obtained through performing random projection on and QR decomposition of the traditional Toeplitz matrix, the dimensionality of the matrix by singular value decomposition is reduced and the computational efficiency of the matrix is improved.
    Type: Application
    Filed: August 7, 2023
    Publication date: February 29, 2024
    Inventors: Maosen Cao, Qingyang Wei, Jie Wang, Yufeng Zhang, Xiangdong Qian, Dragoslav Sumarac, Emil Manoach, Shuai Li
  • Patent number: 11909068
    Abstract: A battery includes a cylindrical battery cell having a cylindrical side surface provided with a pressure relief mechanism, an electrical chamber configured to accommodate the battery cell, a collection chamber configured to collect emissions from the battery cell when the pressure relief mechanism is actuated, and an isolation component configured to isolate the electrical chamber from the collection chamber. The isolation component includes a first region and a second region. The first region is used for accommodating a first portion of the battery cell such that the first portion protrudes, towards the collection chamber, from a surface of the second region facing towards the collection chamber, and the pressure relief mechanism is disposed in a region of the cylindrical side surface located in the first portion such that the emissions are allowed to enter the collection chamber when the pressure relief mechanism is actuated.
    Type: Grant
    Filed: July 17, 2023
    Date of Patent: February 20, 2024
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Ou Qian, Piaopiao Yang, Yufeng Zhang, Xiaobo Chen
  • Patent number: D1025513
    Type: Grant
    Filed: September 21, 2022
    Date of Patent: April 30, 2024
    Inventor: Yufeng Zhang
  • Patent number: D1048473
    Type: Grant
    Filed: April 13, 2023
    Date of Patent: October 22, 2024
    Assignee: JIAXING SUPER LIGHTING ELECTRIC APPLIANCE CO., LTD
    Inventors: Liang Chen, Yufeng Zhang
  • Patent number: D1049438
    Type: Grant
    Filed: April 13, 2023
    Date of Patent: October 29, 2024
    Assignee: JIAXING SUPER LIGHTING ELECTRIC APPLIANCE CO., LTD
    Inventors: Liang Chen, Yufeng Zhang